长效肥料是种缓溶性的化肥,其养分能逐步释放,以满足作物的需求,可减少养分挥发、淋溶等损失,因而提高化肥利用率,增加作物产量,其后效也很明显。长效肥多作基肥施用,简化施肥技术,对砂质土壤尤其适用。我所于80年代进行了长效肥料系列试验。本研究在福州郊区万里村土肥基地进行了3年7个稻、麦季定位试验,现将结果报告如下: Long-acting fertilizer is a kind of slow-release fertilizer, and its nutrients can be gradually released to meet the needs of crops and reduce the loss of nutrients such as volatilization and leaching. As a result, fertilizer utilization rate and crop yield increase obviously. Long-term fertilizer for more than basic fertilizer application, simplification of fertilization technology, especially for sandy soil. I was in the 80’s for a long-term fertilizer series of tests. In this study, Fuzhou suburban Wanli soil and fertilizer base for 3 years and 7 rice, wheat quarter positioning test, the results are reported as follows: